The pin box on our 5.0 was installed to low from ETI, so the camper sat nose high. I raised the pin box to the upper holes (lowering the camper - think about it) and raised the ball on the Andersen hitch. I can't remember the numbers, but raising the pin box lowered the front 4" and then raising the ball 3" gave us a net drop of 1", enough so now our camper rides perfectly level.
Those who know everything use pens. Intelligent people use pencils.